performance gearbox's
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performance gearbox's
is there anyone out there that produces performance parts for t25 box's?
i belive cogbox? builds decent performance box's do they have a website? i did do a search but could not find the answers
Ta
i belive cogbox? builds decent performance box's do they have a website? i did do a search but could not find the answers
Ta
- toomanytoys
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- wasserleaker
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have to say i would like to build my box myself, ive done a sc/cr for the mini
just have no idea where to look for parts
Classic mini I presume? Same here, those sc/cr boxes made a very strog fast box, complete with a big 'S' engine to bolt it to a nice combination.

You will need a few special tools to do it properly... and some of the rebuiders don't even have them all.
If you want gear-sets, bearing sets or practical combinations, Aidan is worth a call - as there are a lot of options you need to weigh up.
What is your target engine and vehicle weight?
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Syncro Kastenwagen / 16" Kombi Camper
Syncronaut No. 1
HarryMann wrote:have to say i would like to build my box myself, ive done a sc/cr for the mini
just have no idea where to look for parts
Classic mini I presume? Same here, those sc/cr boxes made a very strog fast box, complete with a big 'S' engine to bolt it to a nice combination.
![]()
You will need a few special tools to do it properly... and some of the rebuiders don't even have them all.
If you want gear-sets, bearing sets or practical combinations, Aidan is worth a call - as there are a lot of options you need to weigh up.
What is your target engine and vehicle weight?
yes i have 157 brake and 153 lb of torque from it at only 12lb boost, its actually on front cover miniworld this month although they quoted 180 brake lol
i have a scooby lump for my devon i also have an eaton supercharger i want to chuck on it, aiming for 200 brake ... ish
HarryMann wrote:have to say i would like to build my box myself, ive done a sc/cr for the mini
just have no idea where to look for parts
Classic mini I presume? Same here, those sc/cr boxes made a very strog fast box, complete with a big 'S' engine to bolt it to a nice combination.
![]()
You will need a few special tools to do it properly... and some of the rebuiders don't even have them all.
If you want gear-sets, bearing sets or practical combinations, Aidan is worth a call - as there are a lot of options you need to weigh up.
What is your target engine and vehicle weight?
yes i have 157 brake and 153 lb of torque from it at only 12lb boost, its actually on front cover miniworld this month although they quoted 180 brake lol
i have a scooby lump for my devon i also have an eaton supercharger i want to chuck on it, aiming for 200 brake ... ish
Some would say the box isn't up to it without Weddle gears (Aus gears sold by Weddle actually), which are stronger but having less teeth are noisier... however, some SVX's in the US have std boxes, engines about 200/220.
As said above, 4-speed boxes are reputed to be stronger.
What is the Subie engine you're going to use.
As said above, 4-speed boxes are reputed to be stronger.
What is the Subie engine you're going to use.
The 80-90 Tech Wikipedia Your 1st port of call

Syncro Kastenwagen / 16" Kombi Camper
Syncronaut No. 1
- toomanytoys
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Aidan has the correct tools (as said some of the "gearbox rebiulders do not and bodge things)
Have a chat to him too..
I think when people say tha tthe 5 speed is weaker.. there are a lot of variables... just bolting on more hp and expecting the box to cope is a bit extreme.. how old the box is and how has it been "ab"used...
And treating it with a little respect goes a long way... my 1983 2wd caravelle 5 speed has 300k+ km on it.. changes fine, but a little leaky now!!!
Have a chat to him too..
I think when people say tha tthe 5 speed is weaker.. there are a lot of variables... just bolting on more hp and expecting the box to cope is a bit extreme.. how old the box is and how has it been "ab"used...
And treating it with a little respect goes a long way... my 1983 2wd caravelle 5 speed has 300k+ km on it.. changes fine, but a little leaky now!!!